How do you age your paint brushes?
At times it is to my advantage to have slightly “aged” brushes. I can rub them on sandpaper, concrete, or other slightly rough surfaces to create this aged effect. The pressure used will determine the extent of the damage caused to the brush. Not cleaning brushes well can also create a slightly aged brush as the paint will harden near the base of the brush, providing you with the perfect brush for some effects. You can also trim a few small cuts into the end of a brush to cause a jagged edge.